Copper Alloy C92600-M05
Finish state
UNS C92600
M05 = as plaster cast
Use for repeat production of small pressure parts where finer grain and better surface than sand casting are wanted (ASTM B806).
Values for the M05 condition
Other C92600 tempers and conditions
C92600 is listed in 5 conditions; see the grade overview at C92600.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
M01Default As sand cast | Standard ASTM B584 sand-cast condition for valve bodies, pump housings and general pressure castings. | 138 | 303 | 30 | 72 HB | 11.5 % IACS |
As investment cast | For small, complex near-net-shape parts with tight tolerance and fine surface finish. | 145 | 305 | 24 | 74 HB | 11.5 % IACS |
M05This page As plaster cast | Use for repeat production of small pressure parts where finer grain and better surface than sand casting are wanted (ASTM B806). | 150 | 310 | 22 | 78 HB | 11.5 % IACS |
As centrifugally cast | Choose for rings, sleeves and large bushings needing dense, sound wall sections (ASTM B271). | 152 | 315 | 22 | 78 HB | 11.5 % IACS |
As continuous cast | Best for machined bar/tube stock (bushings, wear rings) — dense, uniform, higher yield strength than sand cast (ASTM B505). | 165 | 310 | 14 | 80 HB | 12 % IACS |
What is C92600-M05?
C92600-M05 is C92600 supplied in the M05 condition — use for repeat production of small pressure parts where finer grain and better surface than sand casting are wanted (ASTM B806). C92600-M05 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 102 GPa (14.8 Msi). C92600-M05 has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 854°C (1,569 °F). M01 is the default condition FabDigit quotes; M05 is available on request or by drawing note.
Advantages
- Easy to machine — 70/100, better than 78% of copper alloy grades
- High service temperature — 260°C (500 °F), better than 75% of copper alloy grades
Limitations
- Hard to polish — 65/100, worse than 87% of copper alloy grades
- Limited formability — 14/100, worse than 84% of copper alloy grades
- Poor heat conductor — 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades
C92600-M05 properties
Typical room-temperature values for C92600-M05; 20 are specific to this condition. Other listed values are C92600 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C92600-M05 has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 854°C (1,569 °F).
Mechanical14
C92600-M05 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 102 GPa (14.8 Msi).
Thermal6
C92600-M05 is rated for continuous service to 260°C (500 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades. Thermal expansion is 18 µm/m·K (10 µin/in·°F).
Electrical3
C92600-M05 conducts electricity at 11.5 % IACS, worse than 65% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (66/100), better than 64% of copper alloy grades.
Sustainability4
Producing a kilogram of C92600-M05 takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 70%.
Manufacturability7
C92600-M05's machinability is very good (70/100, better than 78% of copper alloy grades); weldability poor (30/100); formability not recommended (14/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C92600-M05
Is C92600 easy to machine?
Free machining for a tin bronze (≈70 % of C36000): use sharp positive-rake carbide or HSS, moderate speeds and soluble-oil coolant; chips break well thanks to the lead.
Can C92600 be welded?
Fusion welding is generally not recommended (lead causes hot cracking and porosity); repair by braze welding or silver brazing, soldering is excellent.
Can C92600 be formed, bent or molded?
A foundry alloy only — sand, permanent-mold, centrifugal, investment and continuous casting all work well; feed heavy sections to avoid tin inverse segregation and micro-shrinkage.
What surface finishes work on C92600?
Takes a good mechanical polish and buff; can be tin-, nickel- or chromium-plated after thorough degreasing; naturally develops a brown patina, no anodizing.
C92600 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| CuCu + named elements ≥ 99.4 % | 86 – 88.5 | 87 |
| Sn | 9.3 – 10.5 | 10 |
| Zn | 1.3 – 2.5 | 2 |
| Pb | 0.8 – 1.5 | 1 |
| Niincl. Co | ≤ 1 | — |
| Fe | ≤ 0.2 | — |
| Sb | ≤ 0.25 | — |
| S | ≤ 0.05 | — |
| P | ≤ 0.05 | — |
| Al | ≤ 0.01 | — |
| Si | ≤ 0.01 | — |
C92600-M05 — frequently asked
What is C92600-M05 used for?
C92600-M05 is typically used for valve bodies, pump housings and general castings. In short: free-machining tin bronze; good pressure-tightness; highest ductility of family.
What is the yield strength of C92600-M05?
C92600-M05 has a typical yield strength of 150 MPa (21.8 ksi) and a tensile strength of 310 MPa (45 ksi) — weaker than 69% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is C92600-M05 easy to machine?
Yes — machinability is rated very good (70/100, better than 78% of copper alloy grades). Free machining for a tin bronze (≈70 % of C36000): use sharp positive-rake carbide or HSS, moderate speeds and soluble-oil coolant; chips break well thanks to the lead.
Can C92600-M05 be welded?
Not readily — weldability is rated poor (30/100). Fusion welding is generally not recommended (lead causes hot cracking and porosity); repair by braze welding or silver brazing, soldering is excellent.
What surface finishes work on C92600-M05?
Takes a good mechanical polish and buff; can be tin-, nickel- or chromium-plated after thorough degreasing; naturally develops a brown patina, no anodizing.
Can C92600-M05 be formed, bent or molded?
A foundry alloy only — sand, permanent-mold, centrifugal, investment and continuous casting all work well; feed heavy sections to avoid tin inverse segregation and micro-shrinkage.
What is the maximum service temperature of C92600-M05?
C92600-M05 is rated for continuous use to about 260°C (500 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C92600-M01 and C92600-M07?
M01 is the default condition — standard ASTM B584 sand-cast condition for valve bodies, pump housings and general pressure castings. M07: best for machined bar/tube stock (bushings, wear rings) — dense, uniform, higher yield strength than sand cast (ASTM B505). Yield strength is 138 MPa in M01 versus 165 MPa in M07.
Sources
- ASTM B584 — Copper Alloy Sand Castings for General Applications — ASTM International (2022)
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- ASTM B271 — Copper-Base Alloy Centrifugal Castings — ASTM International (2020)
- CDA Alloy Database — C92600 leaded tin bronze — Copper Development Association (2023)
- ASM Handbook Vol. 2 — Properties of Copper and Copper Alloys — ASM International (1990)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.